1. Online cleaning
On-line cleaning refers to the overall cleaning of the reverse osmosis device, the membrane elements do not need to be taken out of the pressure vessel, and are usually designed and used in larger systems. This cleaning method is simple and convenient to operate, and the time is short, but it is easy to cause incomplete cleaning and unsatisfactory results. This method can be used when the reverse osmosis device is less polluted.
2. Offline cleaning
Off-line cleaning refers to removing the membrane elements from the reverse osmosis pressure vessel and loading them into special cleaning equipment for cleaning. Usually, the number of cleanings at a time does not exceed six. This cleaning method is simple and convenient to operate, clean thoroughly, and has the best effect. But when there are more membrane elements, the cleaning time is longer. This method can be used when the reverse osmosis pollution is serious or the online cleaning effect is poor.